TrianglesClass

A collection of 3D triangles, where each consecutive triplet of vertices defines a new triangle

Supported Platforms

Windows, Solaris, Linux

Extended Error Information

Use the ISupportErrorInfo method InterfaceSupportsErrorInfo to determine if the object supports extended error information. If the object supports extended error info, VC++ developers should use the OLE/COM IErrorInfo interface to access the ErrorInfo object. Visual Basic developers should use the global error object Err to retrieve this extended error information.

Interfaces

Interfaces Description
IClone (esriSystem) Provides access to members that control cloning of objects.
IGeometry Provides access to members that describe properties and behavior of all geometric objects.
IGeometry2 Provides access to members that extend the IGeometry interface with a more sophisticated projection method.
IGeometryCollection Provides access to members that can be used for accessing, adding and removing individual geometries of a multi-part geometry (Multipoint, Polyline, Polygon, MultiPatch, and GeometryBag).
IMAware Indicator interface that identifies geometric objects that can have persistent M values attached to their vertices.
IPointCollection Provides access to members that manipulate the points of a Multipoint, Path, Ring, Polyline, Polygon, TriangleFan, TriangleStrip, or MultiPatch.
IPointCollection4 Provides access to members that manipulate the points of a Multipoint, Path, Ring, Polyline, Polygon, TriangleFan, TriangleStrip, or MultiPatch.
IPointIDAware Indicator interface that identifies geometries that can have persistent point ID values attached to coordinates.
ISupportErrorInfo (esriSystem)
ITransform2D Provides access to methods for transforming geometries using either specific parameters or arbitrary transformation objects (affine transformations, geographic transformations, etc.).
ITransform3D Provides access to methods for transforming 3D geometries using either specific parameters or arbitrary transformation objects.
ITriangles Indicator interface that identifies a Triangles patch.
IXMLSerialize (esriSystem) Provides access to members that XML serialize and deserialize an object to/from XML.
IZAware Indicator interface that identifies geometries that can have persistent Z values attached to their vertices.
private  static  object  _missing =  Type.Missing;

            public  static  IGeometry  GetTrianglesGeometry()

          {

               //Triangles: Six Triangles Lying In Different Planes

   

               IPointCollection  trianglesPointCollection =

                     new  TrianglesClass();

  

             //Triangle 1

  

             trianglesPointCollection.AddPoint(

                    ConstructPoint3D(7.5, 7.5, 0),

                      ref  _missing,  ref  _missing

              );

              trianglesPointCollection.AddPoint(

                    ConstructPoint3D(10, 7.5, 0),

                     ref  _missing,  ref  _missing

             );

              trianglesPointCollection.AddPoint(

                    ConstructPoint3D(7.5, 5, 0),

                     ref  _missing,  ref  _missing

             );

  

              //Triangle 2

  

             trianglesPointCollection.AddPoint(

                    ConstructPoint3D(-7.5, 7.5, 0),

                      ref  _missing,  ref  _missing

             );

              trianglesPointCollection.AddPoint(

                     ConstructPoint3D(-5, 7.5, 0),

                     ref  _missing,  ref  _missing

             );

              trianglesPointCollection.AddPoint(

                     ConstructPoint3D(-7.5, 5, 0), 

                    ref  _missing,  ref  _missing

             );

  

              //Triangle 3

  

             trianglesPointCollection.AddPoint(

                     ConstructPoint3D(0, -5, 0),

                     ref  _missing,  ref  _missing

             );

              trianglesPointCollection.AddPoint(

                    ConstructPoint3D(2.5, -5, 0),

                     ref  _missing,  ref  _missing

             );

              trianglesPointCollection.AddPoint(

                     ConstructPoint3D(0, -7.5, 0),

                     ref  _missing,  ref  _missing

             );

  

              //Triangle 4

  

             trianglesPointCollection.AddPoint(

                    ConstructPoint3D(0, 7.5, 2.5),

                     ref  _missing,  ref  _missing

             );

              trianglesPointCollection.AddPoint(

                    ConstructPoint3D(2.5, 7.5, 0),

                     ref  _missing,  ref  _missing

             );

              trianglesPointCollection.AddPoint(

                    ConstructPoint3D(0, 7.5, 0),

                     ref  _missing,  ref  _missing

             );

  

              //Triangle 5

  

             trianglesPointCollection.AddPoint(

                    ConstructPoint3D(-7.5, -7.5, 2.5),

                     ref  _missing,  ref  _missing

             );

              trianglesPointCollection.AddPoint(

                    ConstructPoint3D(-5, -7.5, 0),

                     ref  _missing,  ref  _missing

             );

              trianglesPointCollection.AddPoint(

                    ConstructPoint3D(-7.5, -7.5, 0),

                     ref  _missing,  ref  _missing

             );

  

              //Triangle 6

  

             trianglesPointCollection.AddPoint(

                    ConstructPoint3D(7.5, -7.5, 2.5),

                     ref  _missing,  ref  _missing

             );

              trianglesPointCollection.AddPoint(

                    ConstructPoint3D(10, -7.5, 0),

                     ref  _missing,  ref  _missing

             );

              trianglesPointCollection.AddPoint(

                    ConstructPoint3D(7.5, -7.5, 0), 

                    ref  _missing,  ref  _missing

             );

  

              return  trianglesPointCollection  as  IGeometry;

          }

 



           private  static  IPoint  ConstructPoint3D(double  x,  double  y,  double  z)

          {

               IPoint  point = ConstructPoint2D(x, y);

              point.Z = z;

 



               return  point;

          }

 



           private  static  IPoint  ConstructPoint2D(double  x,  double  y)

          {

               IPoint  point =  new  PointClass();

              point.PutCoords(x, y);

  

               return  point;

         }

Your browser is no longer supported. Please upgrade your browser for the best experience. See our browser deprecation post for more details.